    <nav class="main">
        <div class="container">
            <a href="http://www.yedushu.com" class="brand">夜读书</a>
            <div class="search">
                <form class="bs-example bs-example-form" role="form" action="{{ asset('search') }}" method="get">
                    <div class="row">
                    <div class="col-lg-12">
                    <div class="input-group">
                        <input type="text" value="" maxlength="60" name="search_text" id="search" placeholder="书名、作者、ISBN" class="form-control">
                        <span class="input-group-btn">
                        <button type="submit" class="btn btn-default">找书</button>
                        </span>
                    </div>
                    </div>
                    </div>
                </form>
            </div>

            <ul class="main-nav">
                <li class="nav-docs"><a href="http://www.yedushu.com">首页</a></li>
                <li class="nav-community"><a href="{{ asset('books') }}">书籍列表</a></li>
                <li class="nav-community"><a href="{{ asset('shop') }}">阅邻</a></li>
                <li class="nav-community"><a href="{{ asset('shudanlist') }}">书单</a></li>
                <li class="nav-community"><a href="{{ asset('shupinglist') }}">书评</a></li>
                <li class="nav-community"><a href="{{ asset('uaddbooks') }}">添加书籍</a></li>
            </ul>
        </div>
    </nav>